Louis huebner and rudolph busse



Patented Aug ELECTRIC LOCK.

2 Sheets-Sheet 1. L. 'HUEB-NER 8; R. BUSSE.

.No Model.)

Mh ms'es- (NON-100161.) 2 Sheets-Sheet 2. v L. ,HUEBNER- 8n R. BUSSE.

ELECTRIC LocK.

No. 408,484. Patented Aug. 6,

ag-m.

UNITED STATES PATENT UFFICE.

LOUIS IIUEBNER AND RUDOLPH BUS-SE, OF sonwninnirz, GERMANY.

ELECTRIC LooK.

SPECIFICATION forming part of Letters Patent No. 408,484,- dated August 6, 1889. Application filed November 23,1888. Serial No. 291,691. (No model.) Patented in Germany January 3, 1888, No. 44,369.

To all whom it may concern:

Be it known that we, LOUIS HUEBNER and RUDOLPH BUSSE, citizens of Germany, residing at Schweidnitz, in the Empire of Germany, have invented a new and Improved Electric Lock,'(for which we have obtained a patent in Germany, dated January 3,1888, N 0. 44,369,) of whlch the following is a specification.

Our invention consists of the various improvements hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 represents a safe with its door open, showing our improvement arranged thereon. Fig. 2

shows part of the mechanism at an enlarged scale. Fig. is a side view of the same. Fig. 4 represents a section of the lock-case, show ing the tumblers. of the-tumblers, showing a section of bar K.

Fig. 6 is a horizontal section at line B B, Fig.

bar D. Figs. 13,14, and show modifications of the arrangement and manner of operatlng the tumblers. r

S represents a safe, and S thedoor of the same.

N is the inner part of the door-knob,which operates the bolts -L L in the usual manner.-

On the inner side of the door S two electro-magnets M M are arranged, operating,

. through levers E E, the-bars D. D. These bars D D are acted upon by springs g g in such a manner as to move the same toward the bolts L L when the circuit is open. 4

To the door S plates on are attached, and corresponding plates n are attached to the nside of tlie safe, which, when the safe-door 1s closed, come in contact with each'oth'er,

I and thus form the connection between the electro-magnets M M and the battery Tgar ranged at the top of the safe or at any other convenient place within the safe.

Fig. 5 is a side View of one A, forcing thereby the V-shaped bar K out of the recess back into its original position. The key B, Fig. 4, is on its upper edge so shaped that when pushed into the lock the projections on the same raise the several tumblers A into such a position that their recesses 0 come. in line to allow the spring J to move the bar K into the recesses 'I', bringing at the same time said bar K in cont-act with the terminals'q q, and thus close the circuit.

Supposing I that the safe-door is closed and the same locked, this abovedescribed closing of the circuit will cause the magnets MM to operate the levers D D, so as to draw the same away from the bolts L L, and .thus allow said bolts to be moved by theusual door-knob to unlock the safe. As soon as the door is opened, the circuit will be broken as the plates m and n are moved away from each other, when the action of the springs g 9 will force the bars D D toward the bolts L L. The bar D will rest against the straight surface of the lower bolt L, while the bar D will come above the projection 8, arranged on the upper bolt L. r

To allow the movements of the bolts L L when the circuit is open, so as to look again the safe, the projection s on the upper bolt L is made wedge=shaped on its edge, (see Figs. 1 and 2,) whereby the upward movement of this bolt will cause the bar D to be pushed inward against the action of its spring g until said bar D comes below the projecting been moved belowthe bar D, when this action of its spring'g moves the same above the top of said bolt.

Instead or operating the bars D D by the levers E E from the magnets M M, as above described,- the bar D may be arranged in a solenoid, as shown in Fig. 10, and in place of the bar'D a spring g may be arranged, opererated by the magnet M, as shown in Fig. 11. The relative position of the magnet M and bar D may likewise be arranged as shown in Fig. 12, where the lever E is connected with the bar D by a link, and the spring 9 is placed around said link, bearing against a collar on the link and a fixed projection through which'the link passes. In Figs. 13, 14, and 15 the bar K" is dispensed with. The tumblers A are recessed at the sides and provided with springs. 'In the guides A for the tumblers the terminals (1 are arranged, which, when coming in a certain position, by the action of the key B will close the circuit. The end a of the outer terminal a is in contact with a plate 2', attached to a movable plate F, by which arrangement the complicity of the lock may be increased, as the inner end of the plate 2" being always in contact with a the outer end of said plate 2" may be brought, in contact either with the terminal 12 or c.

What We claim is- The combination of the tumblers A, bar K, terminals q q, and battery T with the key 13, as and for the purpose set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

, LOUIS HUEBNER. RUDOLPH BILSSE. Witnesses:

OTTO TAWORSKY, PAUL EXNER. 

